Question

calculate the number of molecules in 56 grams of ch4​

Answer 1

Answer:

3.5

Explanation:

Given mass/Molecular mass

=56/(12+4)

=56/16

=3.5

Answer 2

Answer:

Explanation:After you have found the number of moles of methane (CH4), you should multiply this number by avogadro number (6.022 * 10^23) and you get the number of molecules. Here is the calculation: n = 8.0 gr / 16.043 gr/mol = 0.499 mol. Number of molecules = 0.499 mol * (6.022 * 10^23 1/mol) = 3.005 * 10^23 molecules.

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